<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryList.query" clearable @clear="clearSearch">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addGoods">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="95px"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="140px">
          <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteGood(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryList.pagenum"
        :page-sizes="[1, 5, 10, 15]"
        :page-size="queryList.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>
<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryList: {
        query: '',
        // 当前页码
        pagenum: 1,
        // 每页显示条数
        pagesize: 2
      },
      // 总页数
      total: 0,
      goodsList: []
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryList
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取商品列表失败')
      this.goodsList = res.data.goods
      this.total = res.data.total
      this.$message.success('获取成功')
    },
    // 每页显示条数发生变化触发事件
    handleSizeChange(newsize) {
      this.queryList.pagesize = newsize
      this.getGoodsList()
    },
    // 当前页码值发生变化触发的事件
    handleCurrentChange(newPage) {
      this.queryList.pagenum = newPage
      this.getGoodsList()
    },
    // 清空搜索文本框事件
    clearSearch() {
      this.queryList.query = ''
      this.getGoodsList()
    },
    // 删除商品
    async deleteGood(id) {
      const confirmLog = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (confirmLog !== 'confirm') return
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除失败')
      this.$message.success('删除成功')
      this.getGoodsList()
    },
    // 通过编程式导航跳转到添加商品页面
    addGoods() {
      this.$router.push('/goods/add')
    }
  }
}
</script>
<style lang="less" scoped>
</style>
